Equations - Step2 - Introduction

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What is an equation?
  • What does the equals sign mean?
  • When both sides are EQUIVALENT, the equation BALANCES.
  • Are these equations valid?
    2x = 3x
    5x = 2x + 3x
    4x + 5 = 3x + x + 4
  • Use Balancing Scales and tennis balls / weights to demonstrate BALANCING.
external image balancing%20scales%20122007.gif

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